Global greening as plant life moves northwards
A NASA visualisation shows how plants now cover parts of the globe that were once icy tundras
The curious lives of the people who feel no fear
Some people really are not scared of anything. Understanding why reveals the way the rest of us process terror
SpaceX Grasshopper rocket hops to new heights in Texas
SpaceX's reusable rocket prototype doubled its own hovering record in the company's latest move to make space travel cheaper and less wasteful
Psychedelic glowing wings give planes a lift
Watch how plasma can be used to improve an aircraft's aerodynamics
Mummies show ancient humans had heart trouble too
Heart disease is commonly thought to be a modern ailment, but evidence from ancient mummies suggests humans have had heart problems for thousands of years
Contest to crowdsource design for 3D-printed rocket
Crowdsourced. Open sourced. Global. This rocket design contest has all the buzz words - but will the subject matter be exportable under US munitions law?
Solar plant domes spring up in Fukushima's shadow
Ex-Tepco executive Eiju Hangai has created a self-sustaining agriculture project just 25 kilometres from the stricken nuclear power plant
The search for ET is a detective story without a body
Paul Murdin investigates the possibilities of nearby alien life in Are We Being Watched?, but neglects to cover more thrilling aspects of the quest
Brainless bristlebots show swarm behaviour
Lacking sensors or computing capability, some very simple robots have nonetheless exhibited the ability to swarm
Time to forget global tipping points
The idea that Earth is approaching a point of no return is probably untrue and almost certainly unhelpful, says ecologist Erle C. Ellis
The pall of Fukushima overshadows our energy future
The global repercussions of the Fukushima fiasco could threaten our ability to mitigate climate change
China's next-generation internet is a world-beater
The net's new tiger, China, is creating a faster, more secure system that is way ahead of the West
Feedback: Oratorical science fiction
Scam for science fiction writers, smells like pre-teen spirit, approximate explosions, and much more
Send a text message to charge your cellphone
People living off-grid can now pay for electricity to power their phones simply by sending a text message?- the cheapest method found so far
Briefing: The strange science of sinkholes
The stuff of nightmares, sinkholes are fairly common, although fatalities are rare. Will we see even more of them in the future?
Plants lace their nectar with drugs to make bees return
Pollinators return to the same plants to get their hit of caffeinated nectar
The melting of Canada's glaciers is irreversible
By 2100, a fifth of the world's third-largest ice sheet will be gone - and the world's oceans will be 3.5 centimetres higher
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